// return:
// -1 出错
// 0 成功
public int Write(
string strDatabaseName,
KeyCollection keys,
delegate_getfilename getfilename,
out string strError)
{
strError = "";
// 确保 keys 里面的事项是排序过的。如果没有排序，本函数也能工作，只是效率略低
DelayTable table = null;
KeyCollection part_keys = new KeyCollection();
foreach (KeyItem item in keys)
{
if (table == null)
{
table = GetTable(strDatabaseName, item.SqlTableName);
if (string.IsNullOrEmpty(table.FileName) == true)
{
string strFilename = getfilename(strDatabaseName, item.SqlTableName);
int nRet = table.Create(strFilename, out strError);
if (nRet == -1)
{
return(-1);
}
}
}
else
{
if (table.TableName != item.SqlTableName)
{
if (part_keys.Count > 0)
{
table.Write(part_keys);
part_keys.Clear();
}
table = GetTable(strDatabaseName, item.SqlTableName);
if (string.IsNullOrEmpty(table.FileName) == true)
{
string strFilename = getfilename(strDatabaseName, item.SqlTableName);
int nRet = table.Create(strFilename, out strError);
if (nRet == -1)
{
return(-1);
}
}
}
}
part_keys.Add(item);
}
if (part_keys.Count > 0)
{
Debug.Assert(table != null, "");
table.Write(part_keys);
part_keys.Clear();
}
return(0);
}
